42545532440 has 16 divisors (see below), whose sum is σ = 95727448080. Its totient is φ = 17018212960.

The previous prime is 42545532391. The next prime is 42545532473. The reversal of 42545532440 is 4423554524.

It is a junction number, because it is equal to n+sod(n) for n = 42545532394 and 42545532403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531819116 + ... + 531819195.

It is an arithmetic number, because the mean of its divisors is an integer number (5982965505).

Almost surely, 2^42545532440 is an apocalyptic number.

42545532440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42545532440 is an abundant number, since it is smaller than the sum of its proper divisors (53181915640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42545532440 is a wasteful number, since it uses less digits than its factorization.

42545532440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063638322 (or 1063638318 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 38.

The spelling of 42545532440 in words is "forty-two billion, five hundred forty-five million, five hundred thirty-two thousand, four hundred forty".